When insurance pays for a body repair due to an accident or other issue they normally use specific shops. They have ones that they recommend. You can always call your insurance company and ask who they recommend even if you are not asking to file a claim.
Most places that do paint and body are very proud of their work. They usually will have before and after picture books, walls, boards, or at least access to pictures if not access to people whose cars they have done. If they do not it is a good sign that there is an issue.
Body Shop Repairs Aren't Complete Without Professional Painting
Sometimes, accidents happen that can leave beautiful cars marred with dents, scratches and scrapes. When repairs are made, many people don't consider having a professional color match and painting done to make the vehicle look mint again. However, without that professional body painting, the vehicle will not look one-hundred percent. There are many benefits to having this done when taking a car in for body shop repairs.